#include "BspAdc.h"

__IO uint16_t ADC1ConvertedValue[7];
void(*Adc1DmaCall)(__IO uint16_t* Data_p) = 0;

/******************************************************************************
* @brief  ADC1 IO 配置
* @param  None
* @retval None
* @IO PowerADC--------PA0
*******************************************************************************/
static void BspAdc1IOConfig(void)
{
	GPIO_InitTypeDef GPIOX;
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
	GPIOX.GPIO_Pin = GPIO_Pin_0;
	GPIOX.GPIO_Mode = GPIO_Mode_AIN;
	GPIOX.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOA,&GPIOX);
}

/******************************************************************************
* @brief  ADC1 配置
* @param  None
* @retval None
* @IO None
*******************************************************************************/
static void BspAdc1Config(void)
{
	ADC_InitTypeDef ADC_InitStructure;
  DMA_InitTypeDef DMA_InitStructure;
	NVIC_InitTypeDef  NVICX;
	
	RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1,ENABLE);
	
	NVICX.NVIC_IRQChannel = DMA1_Channel1_IRQn;
	NVICX.NVIC_IRQChannelPreemptionPriority = 3;
	NVICX.NVIC_IRQChannelSubPriority = 0;
	NVICX.NVIC_IRQChannelCmd = ENABLE;
	NVIC_Init(&NVICX);
	
	/* DMA1 channel1 configuration ----------------------------------------------*/
  DMA_DeInit(DMA1_Channel1);
  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&ADC1->DR;
  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADC1ConvertedValue;
  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
  DMA_InitStructure.DMA_BufferSize = 7;
  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
  DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
  DMA_InitStructure.DMA_Priority = DMA_Priority_High;
  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
  DMA_Init(DMA1_Channel1, &DMA_InitStructure);
  
	DMA_ClearFlag(DMA1_FLAG_TC1);
	DMA_ITConfig(DMA1_Channel1,DMA_IT_TC,ENABLE);
  /* Enable DMA1 channel1 */
  DMA_Cmd(DMA1_Channel1, ENABLE);
	
	/* ADC1 configuration ------------------------------------------------------*/
  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
  ADC_InitStructure.ADC_ScanConvMode = ENABLE;
  ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
  ADC_InitStructure.ADC_NbrOfChannel = 1;
  ADC_Init(ADC1, &ADC_InitStructure);

  /* ADC1 regular channel4 configuration */ 
  ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 1, ADC_SampleTime_239Cycles5);
	
	
  /* Enable ADC1 DMA */
  ADC_DMACmd(ADC1, ENABLE);
  
  /* Enable ADC1 */
  ADC_Cmd(ADC1, ENABLE);

  /* Enable ADC1 reset calibration register */   
  ADC_ResetCalibration(ADC1);
  /* Check the end of ADC1 reset calibration register */
  while(ADC_GetResetCalibrationStatus(ADC1));

  /* Start ADC1 calibration */
  ADC_StartCalibration(ADC1);
  /* Check the end of ADC1 calibration */
  while(ADC_GetCalibrationStatus(ADC1));
  
}

/******************************************************************************
* @brief  DMA1_Channel1_IRQHandler  DMA 通道 1 中断
* @param  None
* @retval None
* @IO None
*******************************************************************************/
void DMA1_Channel1_IRQHandler(void)
{
	if(DMA_GetITStatus(DMA1_IT_TC1) != RESET)
	{
		 DMA_ClearITPendingBit(DMA1_IT_TC1);
		 Adc1DmaCall(ADC1ConvertedValue);
	}
}

/******************************************************************************
* @brief  ADC1 初始化
* @param  None
* @retval None
* @IO None
*******************************************************************************/
void BspAdc1_Init(void(*Adc1DmaHandle)(__IO uint16_t* Data_p))
{
	Adc1DmaCall = Adc1DmaHandle;
	BspAdc1IOConfig();
	BspAdc1Config();
}

/******************************************************************************
* @brief  ADC1 启动
* @param  None
* @retval None
* @IO None
*******************************************************************************/
void BspAdc1StartConv(void)
{
	if(Adc1DmaCall != 0)
	{
		/* Start ADC1 Software Conversion */ 
    ADC_SoftwareStartConvCmd(ADC1, ENABLE);
	}
}




